I have been following some of the other treads were the idea has been expressed that there are only a limited number of adventure/campaign ideas available involving a party made up entirely of space marines. I think it would be good to explore how a space marine centered game could be run; so please post any ideas you have for adventures or even full campaigns.
The first idea for an adventure I had was based on Saving Private Ryan. The son of the planetary governor was leading a group of guardsmen in action against orcs/tyranids/what have you, when his unit was cut off. The characters are assigned to go in and bring him out alive, only to find the guardsmen are holding a vital strategic point and the governor’s son refuses to leave until the area is secured. The characters must decide between staying and helping to fight against overwhelming odds, or dragging the governor’s son from the battle, forcing him to abandon his men, and thus creating a diplomatic incident that will sour relations with the PDF.
Another idea I had may be more suited for a long term campaign. The characters uncover evidence that one or more powerful inquisitors have fallen to Chaos. The only problem is, they don’t know which ones. To make matters worse, there is some indication that the corruption may even extend into Deathwatch and some of their brother space marines may have fallen as well. The characters will have to rely less on their bolters and more on their wits to investigate the Inquisition itself.
I realize that these are only rough ideas and have plot holes a mile wide, but I think a good spitballing session will bring up better ideas.